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A new mathematical model of asymmetric hydraulic fracture growth

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10369784" target="_blank" >RIV/00216208:11310/18:10369784 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1111/1365-2478.12590" target="_blank" >http://dx.doi.org/10.1111/1365-2478.12590</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1111/1365-2478.12590" target="_blank" >10.1111/1365-2478.12590</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    A new mathematical model of asymmetric hydraulic fracture growth

  • Original language description

    Hydraulic fractures generated by fluid injection in rock formations are often mapped by seismic monitoring. In many cases, the microseismicity is asymmetric relative to the injection well, which has been interpreted by stress gradient along the direction of the hydraulic fracture. We present a mathematical model of asymmetric hydrofracture growth based on relations between the solid-phase stress and the fracture hydraulics. For single fracture and single injection point, the model has three parameters, hydraulic conductivities of the fracture wings, and normalised stress gradient and predicts the positions of the fracture tips as functions of time. The model is applied to a set of microseismic event locations that occurred during and after an injection process. Two different methods are suggested that make it possible to delineate the fracture tips from the set of microseismic events. This makes it possible to determine the model parameters and to check the agreement between the model prediction and the measured data. The comparison of the measured and modelled growth of fracture wings supports both the assumption of the non-zero stress gradient and the existence of the post-injection unilateral growth.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10505 - Geology

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Geophysical Prospecting

  • ISSN

    0016-8025

  • e-ISSN

  • Volume of the periodical

    66

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    12

  • Pages from-to

    549-560

  • UT code for WoS article

    000425181700006

  • EID of the result in the Scopus database

    2-s2.0-85034232880